that would be correct L1ftmech
generally G would stand for gas or propane, D would designate for a diesel engine and B would designate battery.
In this trucks case though this model can accomodate either engine even though it designates D in its model number.

BTW....
what i posted earlier was not directed at you if you thought that, i was just making a general statement from my observations throughout this forum, it happens alot but you did question it earlier i noticed...
the code he is posting is for a gas/lpg truck :o)